Kan. Admin. Regs. § 22-13-34
Flexible metal gas connectors may be used in connection with gas fired movable cooking equipment in any public building, resort, or hotel, as such term as defined by K.S.A. 1978 Supp. 36-501. Such assemblies shall be of a two (2) wall construction. The exterior wall shall either be metal braiding or metal interlocking casing. All flexible metal gas connectors shall be equipped with a cadmium-plated steel or brass quick-disconnect coupling equipped with a thermal shut-off. The flexible connectors and the quick disconnect device shall comply with the American national standards institute inc. (ANSI) regulations Z21-45-1971 and Z21-41-1971 respectively. A manual shut-off valve shall be installed in the piping immediately ahead of the quick disconnect device. The shut-off valve shall be an approved gas cock valve.
Kan. Admin. Regs. § 22-13-34